SU1421549A1 - Hydropneumatic resilient member for vehicle suspension - Google Patents

Abstract

. The invention relates to the automotive industry, in particular to the elastic elements of the suspension of heavy vehicles. The purpose of the invention is to increase reliability. The device contains a cylinder 1, a piston 2, rigidly connected to the rod 3, as well as a backpressure chamber 4 in communication with the rod cavity of the cylinder, two diametrically opposite segment grooves 5 made in the piston 5. In the axial channels 7 there are spools 8 connected by tongs with lever control system. When the hydropneumatic element is tilted, the rodless cavity communicates with a segmental recess on the outside of the slope. The pressure in this segment recess increases, and the piston is slightly pressed from the loaded side from the inner surface of the cylinder. This reduces wear and increases the durability of the hydropneumatic element. 1 hp f-ly, 4 ill. C & (L S P .1

Description

one

The invention relates to the automotive industry, in particular to the hydropneumatic elastic elements according to. weights.

I The purpose of the invention is to increase reliability,

 FIG. 1 shows the hydropneumatic elastic element of the suspension; in fig. 2 is a section A-A in FIG. one; in fig. 3 is a section BB in FIG. one; n and fig. 4 is a view of B in FIG. one.

The hydropneumatic elastic suspension element contains a cylinder 1 and a piston 2 connected to one another on the friction surfaces, and a piston 2 rigidly connected to the rod 3. The cylinderless cavity of cylinder 1 is partially filled with LIQUID and partly with gas. The cylinder cavity 1 of the cylinder 1 is completely filled with liquid and is hydraulically connected to the chamber 4 of the backpressure, on top of it filled with gas. C; piston 2 is made two diametrically; opposing segment recesses 5, communicated by radial bores 6 with axial channels 7; B, after them, two spools 8 are mounted, joined with rocker arm 9, which

When termination of the relative movement of the eyebolt 17 and the support 16

NIRNO fixed to the piston 2. With the ball 30 yoke 9 returns to the original

position due to the elasticity of the sylphons 11. The return does not take place at the moment when the relative movement of the eyelet 17- and the support 16 is stopped, but 35 after a certain period of time. This delay is provided by friction in the ball joints 18 and the inertia of the single-motion pairs 13. When the connecting rod 10 40 is axially moved, the hinge 13 performs reciprocating rotational motions around the common axis of the connecting rod and hinge.

Formula of invention

by thought 9, the connecting rods 10 are movably connected through the bellows 11 and the rotary link 12.

The connecting rods with 10 lower ends are connected: Nene with hinges 13, in which screw grooves 14 are made and pins 15 are installed. Screw hinges 13 are fixed to cylindrical bore 16 eyelets 17 with ball joints 18. Sealing of a rod-free high cavity pressure of the cylinder 1 and the internal cavity of the rod 3 is carried out with the help of bellows 11, in the upper part rigidly connected to the connecting rods 10, and in the lower part also rigidly connected to the piston 2. The sleeve 19 is rigidly connected to the piston 2 and prevents the rocker 9 against damage in extreme compressed om position of the elastic element.

Hydropneumatic elastic suspension element works as follows.

45.

1. Hydropneumatic resilient element of the vehicle suspension, containing a cylinder filled with working medium, located in a piston 5Q, with a rod having an eyelet for communication with. the cylindrical support of the sprung or unsprung parts of the vehicle, and a backpressure chamber communicated

the casing 6, the channels 7 and the rod cavity with a backpressure chamber 4, which ensures equal pressure on the left and right of the piston 2. When the cylinder 1 is tilted to the right, there is a relative rotational movement of the lug 17 and the cylindrical support 16 in the direction indicated by arrows. A fracture phenomenon occurs, which leads to an increase in pressure of the piston 2 on the wall of cylinder 1 to the left.

At the same time, the connecting rods 10 rotate the rocker arm through the hinges 13 and 12.

9 counter clockwise. The left spool 8 is moved downward, connecting the left segment recess 5 to a stemless high pressure cavity. Due to the pressure difference in the right

and the left indentations 5, the piston 2 is pressed a little to the right, thereby reducing its pressure on the wall of the cylinder 1. At the same time, the appearance of a fracture in a pair of cylinder 1 is eliminated - piston |. 2, the frictional forces are reduced and the hydropneumatic element seals are unloaded.

When termination of the relative movement of the eyebolt 17 and the support 16

the beam 9 returns to the original

.

Claims (2)

1. Hydropneumatic resilient element of the vehicle suspension, containing a cylinder filled with working media, a piston accommodated in it, with a rod having a tire for communication with. the cylindrical support of the sprung or unsprung parts of the vehicle, and a backpressure chamber communicated In the absence of a skew in the connection with the rod end of the cylinder. Nii eye 17 - cylindrical bearing 16 rocker 9 parallel to the surface of the piston 2. In this position, the segmental recesses 5 are connected through differing in that, with an increase in reliability, it is equipped with a ryisle fixed to the piston of the rodless cavity of the cylinder with It is distinguished by the fact that, in order to increase reliability, it is equipped with a rocker arm mounted on the piston in the rodless cavity of the cylinder 31 the possibility of rotation in the plane of relative movements of the rod and the said cylindrical support of the vehicle, symmetrically fixed on the yoke relative to its center of rotation by connecting rods and spools, while through the axial channels in the piston, and from the side of the cylinder walls - grooves communicated through radial holes with one of the axial channels in ten 21549. the spools are located, and the connecting rods are passed through other axial channels to connect them with the cylindrical support of the vehicle, 2, an element according to claim 1, characterized in that the free ends of the connecting rods QB 10 are fixed on the cylindrical support of the vehicle by means of screw hinges Iff at (rig 2 17 fPuZ.3 Su9t nineteen VtizA